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The ratio of base width ‘b’ to height ‘h’ of an elementary profile of a gravity dam from ‘no tension’ consideration is given by Where G = specific gravity of dam material K = uplift pressure intensity μ = coefficient of friction

The ratio of base width ‘b’ to height ‘h’ of an elementary profile of a gravity dam from ‘no tension’ consideration is given by Where G = specific gravity of dam material K = uplift pressure intensity μ = coefficient of friction Correct Answer <span class="math-tex">\(1/\sqrt{(G - K)}\)</span>

Explanation:

Elementry Profile of Dam :

An elementary profile of a gravity dam is the theoretical shape of its cross-section when it is subjected to only three main forces, viz. self-weight, water pressure, and uplift pressure. Moreover, the elementary profile has zero top width and no freeboard ELEMENTARY.

                                            

Base width for no tension at the heel is given by                       

b/H=1/√ (G-K)

Where,

H=height of the water level at an upstream end

G=specific gravity of the material

K=coefficient of uplift pressure 

Note: Minimum width to depth ratio for no slide condition is b/H=1/ μ (G-K)

Related Questions

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